diff options
| author | Jouni Malinen <jouni@qca.qualcomm.com> | 2015-01-24 19:52:08 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2015-01-27 11:09:13 +0100 |
| commit | 56c52da2d554f081e8fce58ecbcf6a40c605b95b (patch) | |
| tree | 9c28bdf5c73f2f2a3a6d87880a9422e6d16f9d30 /net/mac80211/key.c | |
| parent | 2b2ba0db1c820d04d5143452d70012cd44d7b578 (diff) | |
| download | lwn-56c52da2d554f081e8fce58ecbcf6a40c605b95b.tar.gz lwn-56c52da2d554f081e8fce58ecbcf6a40c605b95b.zip | |
mac80111: Add BIP-CMAC-256 cipher
This allows mac80211 to configure BIP-CMAC-256 to the driver and also
use software-implementation within mac80211 when the driver does not
support this with hardware accelaration.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/key.c')
| -rw-r--r-- | net/mac80211/key.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 83c61085c3f0..7ceea9d9fcd2 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -165,6 +165,7 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key) case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_CCMP_256: case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: case WLAN_CIPHER_SUITE_GCMP: case WLAN_CIPHER_SUITE_GCMP_256: /* all of these we can do in software - if driver can */ @@ -417,8 +418,12 @@ ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, } break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: key->conf.iv_len = 0; - key->conf.icv_len = sizeof(struct ieee80211_mmie); + if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) + key->conf.icv_len = sizeof(struct ieee80211_mmie); + else + key->conf.icv_len = sizeof(struct ieee80211_mmie_16); if (seq) for (j = 0; j < IEEE80211_CMAC_PN_LEN; j++) key->u.aes_cmac.rx_pn[j] = @@ -428,7 +433,7 @@ ieee80211_key_alloc(u32 cipher, int idx, size_t key_len, * it does not need to be initialized for every packet. */ key->u.aes_cmac.tfm = - ieee80211_aes_cmac_key_setup(key_data); + ieee80211_aes_cmac_key_setup(key_data, key_len); if (IS_ERR(key->u.aes_cmac.tfm)) { err = PTR_ERR(key->u.aes_cmac.tfm); kfree(key); @@ -481,6 +486,7 @@ static void ieee80211_key_free_common(struct ieee80211_key *key) ieee80211_aes_key_free(key->u.ccmp.tfm); break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: ieee80211_aes_cmac_key_free(key->u.aes_cmac.tfm); break; case WLAN_CIPHER_SUITE_GCMP: @@ -804,6 +810,7 @@ void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf, seq->ccmp.pn[0] = pn64 >> 40; break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); seq->ccmp.pn[5] = pn64; seq->ccmp.pn[4] = pn64 >> 8; @@ -854,6 +861,7 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf, memcpy(seq->ccmp.pn, pn, IEEE80211_CCMP_PN_LEN); break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: if (WARN_ON(tid != 0)) return; pn = key->u.aes_cmac.rx_pn; @@ -897,6 +905,7 @@ void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf, atomic64_set(&key->u.ccmp.tx_pn, pn64); break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: pn64 = (u64)seq->aes_cmac.pn[5] | ((u64)seq->aes_cmac.pn[4] << 8) | ((u64)seq->aes_cmac.pn[3] << 16) | @@ -948,6 +957,7 @@ void ieee80211_set_key_rx_seq(struct ieee80211_key_conf *keyconf, memcpy(pn, seq->ccmp.pn, IEEE80211_CCMP_PN_LEN); break; case WLAN_CIPHER_SUITE_AES_CMAC: + case WLAN_CIPHER_SUITE_BIP_CMAC_256: if (WARN_ON(tid != 0)) return; pn = key->u.aes_cmac.rx_pn; |